JP2001526944A - Flexible guide catheter - Google Patents
Flexible guide catheterInfo
- Publication number
- JP2001526944A JP2001526944A JP2000526255A JP2000526255A JP2001526944A JP 2001526944 A JP2001526944 A JP 2001526944A JP 2000526255 A JP2000526255 A JP 2000526255A JP 2000526255 A JP2000526255 A JP 2000526255A JP 2001526944 A JP2001526944 A JP 2001526944A
- Authority
- JP
- Japan
- Prior art keywords
- catheter
- shaft
- lumen
- distal
- distal end
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
- A61M25/0105—Steering means as part of the catheter or advancing means; Markers for positioning
- A61M25/0133—Tip steering devices
- A61M25/0147—Tip steering devices with movable mechanical means, e.g. pull wires
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
- A61M25/0105—Steering means as part of the catheter or advancing means; Markers for positioning
- A61M25/0133—Tip steering devices
- A61M25/0136—Handles therefor
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
- A61M25/0105—Steering means as part of the catheter or advancing means; Markers for positioning
- A61M25/0133—Tip steering devices
- A61M2025/0161—Tip steering devices wherein the distal tips have two or more deflection regions
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Heart & Thoracic Surgery (AREA)
- Biophysics (AREA)
- Pulmonology (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Hematology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Mechanical Engineering (AREA)
- Media Introduction/Drainage Providing Device (AREA)
- Surgical Instruments (AREA)
Abstract
(57)【要約】 屈曲可能なガイド・カテーテルは長尺状シャフトを有し、長尺状シャフトは屈曲可能な遠位セクションと、第2ルーメンと、シャフトの遠位端内のポートに連通した第1ルーメンと、第2ルーメン内に配置された先細りの長尺状デフレクション・ラインと、シャフトの壁の内部に設けられた補強ストランドとを一般的に有する。第1ルーメンは第2ルーメンから独立しており、デフレクション・ラインによって妨げられることがない。第2ルーメンの長手方向軸線と、第1ルーメンの長手方向軸線とは、互いに軸線方向に整列し、かつ、シャフト長手方向軸線に対してそれぞれ偏心している。補強ストランド及びデフレクション・ラインは、屈曲可能な遠位シャフト・セクションの遠位端から近位方向に離間した位置まで、屈曲可能な遠位シャフト・セクションの少なくとも一部分を通って延在している。 SUMMARY A bendable guide catheter has an elongate shaft that communicates with a bendable distal section, a second lumen, and a port in the distal end of the shaft. It generally has a tapered elongate deflection line disposed within the first lumen and the second lumen, and reinforcing strands provided within the wall of the shaft. The first lumen is independent of the second lumen and is not obstructed by the deflection line. The longitudinal axis of the second lumen and the longitudinal axis of the first lumen are axially aligned with each other and are respectively eccentric with respect to the shaft longitudinal axis. The reinforcement strand and the deflection line extend through at least a portion of the bendable distal shaft section to a position proximally spaced from a distal end of the bendable distal shaft section. .
Description
【0001】 技術分野 本発明は、管内カテーテルの分野に関し、より詳細には、屈曲可能な遠位端を
有するガイド・カテーテルに関する。TECHNICAL FIELD The present invention relates to the field of intraluminal catheters, and more particularly, to guide catheters having a bendable distal end.
【0002】 発明の背景 ガイド・カテーテルは、診断デバイス、治療デバイス又は流体などを患者の体
内の所望の部位まで案内するのに数多くの経皮的内腔手術に使用されている。例
えば、一般的に、ガイド・カテーテルは、血管形成術に使用するバルーン・カテ
ーテルや、心臓組織のアブレーション又はマッピングに使用する電気生理学(el
ectrophysiology、略してEPと称する)デバイスなどと一緒に使用される。米 国特許第5,509,411号(Littmann他)はEPカテーテルの例を開示して
おり、この米国特許の内容はこの開示をもって本明細書中に開示したものとする
。BACKGROUND OF THE INVENTION [0002] Guide catheters are used in many percutaneous lumen surgeries to guide a diagnostic device, a treatment device or a fluid or the like to a desired site within a patient's body. For example, guide catheters are commonly used for balloon catheters used for angioplasty and for electrophysiology (e.g.,
ectrophysiology (EP). U.S. Pat. No. 5,509,411 (Littmann et al.) Discloses an example of an EP catheter, the contents of which are hereby incorporated by reference.
【0003】 ガイド・カテーテルを設計する場合、ガイド・カテーテルの可撓性及び強度に
関連した互いに競合することの多い異なる複数の問題の間の釣り合いをとる必要
がある。ガイド・カテーテルを前進させることと、ガイド・カテーテルにトルク
を加えることを可能にする十分な可撓性及び強度と、シャフト・バックリングを
制限する十分なカラム強度とを、ガイド・カテーテルの近位セクションは有する
必要がある。高い操作性を提供するとともに、患者の脈管構造を損傷することを
防止するために、ガイド・カテーテルの遠位端は近位セクションよりも更に高い
可撓性を一般的に有する。しかし、遠位端は、前進中におけるキンクを防止する
のに十分な強度を有する必要がある。[0003] When designing guide catheters, there is a need to balance between different, often competing issues related to guide catheter flexibility and strength. Advancing the guide catheter, sufficient flexibility and strength to allow torque to be applied to the guide catheter, and sufficient column strength to limit shaft buckling, should be proximal to the guide catheter. Section must have. The distal end of the guide catheter generally has more flexibility than the proximal section to provide increased maneuverability and prevent damage to the patient's vasculature. However, the distal end must be strong enough to prevent kinks during advancement.
【0004】 EPカテーテルなどのデバイスを送り届けるためには、大きなデリバリ・ルー
メンが望ましいが、カテーテルを患者の体内で簡単に前進できるようにするには
、カテーテルの外径を最小限に抑制する必要がある。したがって、カテーテルが
大きなデリバリ・ルーメンを有する際、ガイド・カテーテルの外径を最小限に抑
制するために、カテーテルの壁は必然的に薄くなる。一般的に、管状金属線補強
材、即ち、編組金属線補強材をカテーテルの壁内に設けてもよい。金属線補強材
はカテーテルの剛性を高めるとともに、患者の体外に位置するカテーテルの近位
端を回動させた際に、トルクをカテーテルの遠位端へ伝達する。[0004] While large delivery lumens are desirable for delivering devices such as EP catheters, the outer diameter of the catheter must be minimized to allow the catheter to be easily advanced within the patient. is there. Thus, when the catheter has a large delivery lumen, the catheter wall is necessarily thinner to minimize the outer diameter of the guide catheter. Generally, a tubular metal wire stiffener, ie, a braided metal wire stiffener, may be provided within the catheter wall. The metal wire reinforcement increases the stiffness of the catheter and transmits torque to the distal end of the catheter as the proximal end of the catheter, located outside the patient's body, is rotated.
【0005】 ガイド・カテーテルの遠位端が患者の体内に配置されているときに、該遠位端
を屈曲させること、即ち、対応する部位の形に合わせることが頻繁に必要になる
。屈曲した形状は、カテーテルの遠位端を体の所望の内腔内又は部屋内へ案内す
るのに効果的である。例えば、EPアブレーション又はマッピングの施行中に、
EPデバイスを患者の冠状静脈洞内へ前進させるために、ガイド・カテーテルを
患者の枝分かれした脈管構造内で操作する必要がある。更に、EPデバイスのR
Fエネルギー又はレーザー・エネルギーを組織(患者の心内膜など)へ適切に送
り届けることを促進する目的で、EPデバイスの遠位端チップを該組織に対して
配向させるのに、ガイド・カテーテルの成形された遠位端又は成形可能な遠位端
が使用される。したがって、ガイド・カテーテルは前もって成形された遠位端チ
ップを有することが可能であり、ガイド・カテーテルの近位端を患者の体外から
回動させることによって、この遠位端チップを患者の体内の所望の位置へ案内で
きる。更に、ガイド・カテーテルの遠位端チップが患者の体内に配置されている
ときに、この遠位端チップを可逆的に屈曲させるためのデフレクション機構を、
ガイド・カテーテルは有し得る。[0005] When the distal end of a guide catheter is positioned within a patient's body, it is frequently necessary to bend the distal end, ie, to conform to the corresponding site. The bent shape is effective to guide the distal end of the catheter into the desired lumen or room of the body. For example, during the execution of an EP ablation or mapping,
In order to advance the EP device into the patient's coronary sinus, the guide catheter needs to be manipulated within the patient's branched vasculature. Furthermore, the R of the EP device
Forming a guide catheter to orient the distal tip of the EP device relative to the tissue to facilitate proper delivery of F or laser energy to the tissue (such as the endocardium of the patient) A shaped or moldable distal end is used. Thus, the guide catheter can have a pre-shaped distal tip, and by rotating the proximal end of the guide catheter from outside the patient, the distal tip can be placed inside the patient. It can be guided to a desired position. Further, a deflection mechanism for reversibly bending the distal end tip of the guide catheter when the distal end tip is placed inside the patient,
The guide catheter may have.
【0006】 EPカテーテルなどのデバイスを送り届けるための比較的大きなルーメンとと
もに、十分なカラム強度及びトルク・トランスミッションを有する屈曲可能なガ
イド・カテーテルを提供することは、これまで困難であった。更に、一般的に、
従来の屈曲可能な多くのカテーテルは一平面内での屈曲に限定されている。例え
ば、カテーテルの屈曲した遠位端チップを所望の枝分かれした血管内に配置した
り、所望の組織壁に接触させたりするために、該遠位端チップを所望の平面内に
配置する目的で、患者の体外に位置するカテーテル・シャフトの近位端から該カ
テーテル・シャフトを回動させることを、上記の一平面内での屈曲は必要とする
。[0006] It has heretofore been difficult to provide a bendable guide catheter having sufficient column strength and torque transmission, along with a relatively large lumen for delivering a device such as an EP catheter. Furthermore, in general,
Many conventional bendable catheters are limited to bending in one plane. For example, to position the distal tip of a catheter in a desired plane to place the bent distal tip of the catheter in a desired branch vessel or to contact a desired tissue wall, The bending in the above plane requires rotation of the catheter shaft from the proximal end of the catheter shaft located outside the patient.
【0007】 デバイスをその内部に収容するための妨げのない大きなルーメンを形成する一
方で、耐キンク性とトルク性を有する屈曲可能なシャフトを含むカテーテルが必
要である。本発明は、これらの必要性及びその他の必要性を満たす。[0007] There is a need for a catheter that includes a kink-resistant and torque-resistant bendable shaft while forming a large, unimpeded lumen for housing the device therein. The present invention fulfills these and other needs.
【0008】 発明の概要 本発明は、屈曲可能な遠位セクションと、妨げのないデリバリ・ルーメンとを
有する長尺状シャフトを有し、かつ、耐キンク性及びトルク・トランスミッショ
ンを有するカテーテルに関する。SUMMARY OF THE INVENTION The present invention is directed to a catheter having an elongate shaft having a bendable distal section and an unobstructed delivery lumen, and having kink resistance and torque transmission.
【0009】 一般的に、本発明のガイド・カテーテル、即ち、デリバリ・カテーテルは長尺
状シャフトを有し、該長尺状シャフトは、屈曲可能な遠位セクションと、デフレ
クション・ライン・ルーメンと、シャフトの遠位端内のポートに連通したデリバ
リ・ルーメンとを有する。長尺状であって、好ましくは先細りになったデフレク
ション・ラインは、デフレクション・ライン・ルーメン内に配置されている。シ
ャフトの壁は、補強するための、即ち、剛性を高めるためのストランド又はファ
イバを有することが好ましく、これらのストランド又はファイバは編組されてい
るか、又は巻回されている。デフレクション・ライン・ルーメンの長手方向軸線
と、デリバリ・ルーメンの長手方向軸線とは、互いに軸線方向に整列し、かつ、
シャフトの長手方向中心軸線に対してそれぞれ偏心している。“軸線方向に整列
している”という語句は、2つのルーメンが、シャフトの長手方向中心軸線に交
差する2等分面に沿って整列されていることを意味する。In general, the guide catheter, or delivery catheter, of the present invention has an elongate shaft, the elongate shaft having a bendable distal section, a deflection line lumen and , A delivery lumen in communication with a port in the distal end of the shaft. An elongated, preferably tapered, deflection line is disposed within the deflection line lumen. The wall of the shaft preferably has strands or fibers for reinforcement, i.e. for increasing rigidity, which strands or fibers are braided or wound. The longitudinal axis of the deflection line lumen and the longitudinal axis of the delivery lumen are axially aligned with each other, and
Each shaft is eccentric with respect to the longitudinal central axis. The phrase "axially aligned" means that the two lumens are aligned along a bisector that intersects the longitudinal central axis of the shaft.
【0010】 シャフト遠位セクションを選択的に屈曲させるために、オペレータはデフレク
ション・ラインを長手方向に移動させる。デフレクション・ラインをシャフトの
近位端から近位方向に引き出すことによって、遠位シャフト・セクションは、シ
ャフト長手方向軸線に整列した屈曲していないポジションから、シャフト長手方
向軸線から離間する方向に屈曲する。1つの実施形態では、デフレクション・ラ
インが十分な剛性を有する場合、シャフト遠位セクションを反対方向に屈曲させ
るために、デフレクション・ラインをシャフトの遠位端に向かって長手方向に移
動させ得る。1つの例では、カテーテルは、該カテーテルの近位端に設けられた
ステアリング機構を有し、オペレータがデフレクション・ラインを長手方向へ移
動させることを、ステアリング機構は促進する。[0010] To selectively bend the shaft distal section, the operator moves the deflection line longitudinally. By withdrawing the deflection line proximally from the proximal end of the shaft, the distal shaft section bends away from the shaft longitudinal axis from an unbent position aligned with the shaft longitudinal axis. I do. In one embodiment, if the deflection line has sufficient rigidity, the deflection line may be moved longitudinally toward the distal end of the shaft to bend the shaft distal section in the opposite direction. . In one example, the catheter has a steering mechanism at the proximal end of the catheter, which facilitates the operator to move the deflection line longitudinally.
【0011】 本発明のカテーテルは耐キンク性及びトルク性を有している。デフレクション
・ライン・ルーメンの遠位端まで延在するデフレクション・ラインは、カラム強
度を提供するとともに、剛性の滑らかな変化をカテーテル近位シャフト・セクシ
ョンから屈曲可能な遠位シャフト・セクションまで提供すべく先細りになってい
る。デフレクション・ライン・ルーメンの遠位端は、屈曲可能な遠位シャフト・
セクションの遠位端から近位方向に離間した位置まで、該屈曲可能な遠位シャフ
ト・セクションの少なくとも一部分の内部を通って延在している。一般的に、デ
フレクション・ラインは、屈曲可能な遠位シャフト・セクションの全長のうちの
約70〜約95%、好ましくは約85%〜約90%にわたって延在している。シ
ャフトの遠位端チップから近位方向に離間した位置にその末端が位置するデフレ
クション・ラインに起因して、シャフトの遠位端は改善された柔軟性を有する。The catheter of the present invention has kink resistance and torque resistance. A deflection line that extends to the distal end of the deflection line lumen provides column strength and provides a smooth change in stiffness from the catheter proximal shaft section to the bendable distal shaft section It is tapering off as much as possible. The distal end of the deflection line lumen has a bendable distal shaft
Extending through the interior of at least a portion of the bendable distal shaft section to a position proximally spaced from a distal end of the section. Generally, the deflection lines extend from about 70 to about 95%, preferably from about 85% to about 90%, of the total length of the bendable distal shaft section. The distal end of the shaft has improved flexibility due to the deflection line whose distal end is located proximally spaced from the distal tip of the shaft.
【0012】 シャフト・カラム強度及びトルク・トランスミッションに貢献する適切な補強
のためのストランド又はファイバ(剛性を高めるためのワイヤ・ブレードなど)
によって、シャフトは補強されている。この補強材は屈曲可能な遠位シャフト・
セクションの少なくとも一部分内まで延在している。一般的に、補強材は屈曲可
能な遠位シャフト・セクションの全長のうちの約15%〜約50%、好ましくは
約25%〜約45%にわたって延在している。補強材はステンレス・スチールか
ら形成することが好ましいが、同じような剛性を有する他の材料も補強材に適し
ており、これらの他の材料の例としては、ニチノール、MP35N及びElginoy と、ポリアミド及びケブラー(商標名)などの高い強度を有するポリマー材料と
が挙げられる。Strands or fibers for proper reinforcement that contribute to shaft column strength and torque transmission (such as wire blades for increased stiffness)
With this, the shaft is reinforced. This reinforcement is a flexible distal shaft
It extends into at least a portion of the section. Generally, the stiffener extends from about 15% to about 50%, preferably from about 25% to about 45%, of the entire length of the bendable distal shaft section. The reinforcement is preferably formed from stainless steel, but other materials of similar rigidity are also suitable for the reinforcement, examples of which are nitinol, MP35N and Elginoy, polyamide and High strength polymer materials such as Kevlar (trade name).
【0013】 ガイド・カテーテルのデリバリ・ルーメンは、デフレクション・ライン・ルー
メンから独立している、即ち、液体を通さないようにデフレクション・ライン・
ルーメンからシールされており、これによって、EP用、他の治療用又は診断用
の薬剤又はデバイスを摺動可能に収容するための妨げのない通路を提供する。本
発明のガイド・カテーテルは所望の心臓組織へアクセスする際に更に優れた制御
を提供するので、診断又は治療のために、EPマッピング・カテーテル又はEP
アブレーション・カテーテルをサポートし、かつ、心臓の心房や、心室内の様々
な部位へ送り届ける上で、本発明のガイド・カテーテルは特に効果的である。例
えば、EPカテーテルのうちの作用する遠位端を、心臓の三尖弁の上の右心房内
に位置決めするのに、本発明のガイド・カテーテルを下大静脈から右心房内へ前
進させてもよい。次いで、本発明のガイド・カテーテルの遠位端チップを回動及
び/又は屈曲させることによって、EPカテーテルの遠位端上の電極を右心房の
心臓組織に対して作用接触させ得る。したがって、複数の電極がEPデバイス遠
位端に設けられている場合、本発明のガイド・カテーテルの移動及び制御の範囲
は、これら全ての電極を心臓組織に対して一緒に接触させることを可能にする。
この結果、任意の時点で、更に広い組織領域をデバイスと作用接触させ得る。こ
れにより、連続した傷を複数の独立したアブレーションから形成できる。[0013] The delivery lumen of the guide catheter is independent of the deflection line lumen, that is, the deflection line lumen is impervious to liquids.
Sealed from the lumen, which provides an unobstructed passageway for slidably containing an EP, other therapeutic or diagnostic agent or device. The guide catheter of the present invention provides greater control in accessing the desired heart tissue, so that the EP mapping catheter or EP
The guide catheter of the present invention is particularly effective in supporting and delivering the ablation catheter to the atria of the heart and various locations within the ventricle. For example, to position the working distal end of an EP catheter into the right atrium over the tricuspid valve of the heart, the guide catheter of the present invention may be advanced from the inferior vena cava into the right atrium. Good. The electrodes on the distal end of the EP catheter may then be brought into operative contact with the right atrial heart tissue by pivoting and / or bending the distal tip of the guide catheter of the present invention. Thus, when multiple electrodes are provided at the distal end of the EP device, the range of movement and control of the guide catheter of the present invention allows all of these electrodes to contact the heart tissue together. I do.
As a result, a larger tissue area may be in operative contact with the device at any time. This allows a continuous wound to be formed from multiple independent ablations.
【0014】 本発明のガイド・カテーテルは、屈曲可能な遠位シャフト・セクションと、治
療デバイス及び診断デバイスを送り届けるのに使用可能な妨げのないデリバリ・
ルーメンとを有する一方で、トルクを伝達し、かつ、キンクに抵抗するのに十分
な強度を有する。シャフトをデフレクション・ライン及びライン・ブレードによ
って補強するとともに、2つのルーメンの中心軸線をシャフト長手方向軸線から
それぞれオフセットさせ、かつ、これら2つのルーメンを軸線方向に互いに整列
させることによって、カテーテルはトルクを伝達し、かつ、キンクに抵抗する。
本発明の上記の効果及びその他の効果は、本発明の以下の詳細な説明と、例示を
目的とした添付図面とから更に明らかになる。The guide catheter of the present invention includes a bendable distal shaft section and an unobstructed delivery device that can be used to deliver therapeutic and diagnostic devices.
While having a lumen, it has sufficient strength to transmit torque and resist kink. By augmenting the shaft with deflection lines and line blades, offsetting the central axes of the two lumens from the shaft longitudinal axis, respectively, and aligning the two lumens axially with each other, the catheter can be torqued. And resist kink.
The above and other advantages of the present invention will become more apparent from the following detailed description of the invention and the accompanying drawings, which are for purposes of illustration.
【0015】 発明の詳細な説明 図1は、長尺状シャフト11を有する本発明の実施形態に基づくガイド・カテ
ーテル10を示す図である。長尺状シャフト11は、近位端12、遠位端13及
び屈曲可能な遠位シャフト・セクション14を有する。シャフト長手方向軸線に
対して偏心した第1ルーメン16は、シャフト遠位端13内のポート17までシ
ャフト11内を通って延在している。シャフト長手方向軸線に対して偏心し、か
つ、第1ルーメン16と同心をなす第2ルーメンは、シャフト遠位端13から近
位方向に離間した位置まで延在している。長尺状デフレクション・ライン、即ち
、長尺状デフレクション部材19は第2ルーメン18内に収容されるとともに、
半径方向に直径が減少する先細りの遠位セクション20を有している。シャフト
11内に埋め込まれた補剛ワイヤ・ブレード21は、シャフトの耐キンク性及び
トルク性を実現する十分なカラム強度及び剛性を提供すべくシャフトを補強して
いる。DETAILED DESCRIPTION OF THE INVENTION FIG. 1 shows a guide catheter 10 having an elongate shaft 11 according to an embodiment of the present invention. The elongate shaft 11 has a proximal end 12, a distal end 13, and a bendable distal shaft section 14. A first lumen 16 eccentric to the shaft longitudinal axis extends through the shaft 11 to a port 17 in the shaft distal end 13. A second lumen eccentric to the shaft longitudinal axis and concentric with the first lumen 16 extends to a position proximally spaced from the shaft distal end 13. The long deflection line, that is, the long deflection member 19 is housed in the second lumen 18,
It has a tapered distal section 20 of decreasing diameter in the radial direction. A stiffening wire blade 21 embedded within the shaft 11 reinforces the shaft to provide sufficient column strength and rigidity to achieve kink resistance and torque resistance of the shaft.
【0016】 図1において、複数の破線はルーメン16,18の軸線の位置及びシャフト1
1の軸線の位置をそれぞれ示している。図1のカテーテルの横断面図である図2
〜図4に示すように、第1ルーメン16及び第2ルーメン18は軸線方向に互い
に整列し、かつ、シャフト長手方向軸線に対してそれぞれ偏心している。したが
って、第1ルーメン16の軸線60及び第2ルーメン18の軸線61は、シャフ
ト11の中心軸線62に交差する平面に沿って整列している。1つの実施形態で
は、第1ルーメン16内に摺動可能に収容されたデバイスの前進を促進する潤滑
面を有するライナ26が、第1ルーメン16にライニングされている。潤滑ライ
ナ26はフッ素重合体から形成可能である。In FIG. 1, a plurality of broken lines indicate the positions of the axes of the lumens 16 and 18 and the shaft 1.
The position of one axis is shown. FIG. 2 is a cross-sectional view of the catheter of FIG. 1.
As shown in FIG. 4, the first lumen 16 and the second lumen 18 are axially aligned with each other and are respectively eccentric with respect to the shaft longitudinal axis. Therefore, the axis 60 of the first lumen 16 and the axis 61 of the second lumen 18 are aligned along a plane that intersects the central axis 62 of the shaft 11. In one embodiment, the first lumen 16 is lined with a liner 26 having a lubricating surface that facilitates advancement of a device slidably contained within the first lumen 16. Lubrication liner 26 can be formed from a fluoropolymer.
【0017】 ガイド・カテーテル10は、約60cm〜約120cmの有効長さがあり、E
Pカテーテルと併用する場合は、一般的に、約80〜約100cmの長さである
。屈曲可能な遠位シャフト・セクション14の長さは約5cm〜約15cmであ
り、好ましくは約7〜約10cmである。ワイヤ・ブレード21はシャフト11
の近位端12から延出し、屈曲可能な遠位シャフト・セクション14の少なくと
も近位部分23内を通って、シャフト11の遠位端13から近位方向に離間した
位置まで延在している。現時点における好ましい実施形態では、内部にワイヤ・
ブレード21を有する屈曲可能な遠位シャフト・セクション14の長さは、約1
.0cm〜約2.5cmである。The guide catheter 10 has an effective length of about 60 cm to about 120 cm,
When used with a P catheter, it is generally about 80 to about 100 cm long. The length of the bendable distal shaft section 14 is from about 5 cm to about 15 cm, preferably from about 7 to about 10 cm. The wire blade 21 is the shaft 11
Extending from the proximal end 12 of the shaft 11 and through at least the proximal portion 23 of the bendable distal shaft section 14 to a position proximally spaced from the distal end 13 of the shaft 11. . In the presently preferred embodiment, a wire
The length of the bendable distal shaft section 14 with the blade 21 is about 1
. 0 cm to about 2.5 cm.
【0018】 デフレクション・ラインの全長はカテーテルの長さに基づいている。第2ルー
メン18と、その内部に位置するデフレクション・ライン19とは、シャフトの
近位端12から延出し、カテーテル・シャフトの遠位端から近位方向に離間した
位置まで、屈曲可能な遠位シャフト・セクション14の少なくとも一部分内に延
在している。現時点における好ましい実施形態では、屈曲可能な遠位シャフト・
セクション14内に位置するデフレクション・ラインの長さは、約4cm〜約1
2cm、好ましくは約5cm〜約10cmであり、ワイヤ・ブレード21の遠位
端を越えて延在しているデフレクション・ライン19の長さは約1.5cm〜約
10cm、好ましくは約2.5cm〜約7cmである。The total length of the deflection line is based on the length of the catheter. A second lumen 18 and a deflection line 19 located therein extend from the proximal end 12 of the shaft and are bendable to a position proximally spaced from the distal end of the catheter shaft. Extending within at least a portion of the post shaft section 14. In a presently preferred embodiment, a bendable distal shaft
The length of the deflection line located in section 14 is between about 4 cm and about 1 cm.
2 cm, preferably about 5 cm to about 10 cm, and the length of the deflection line 19 extending beyond the distal end of the wire blade 21 is about 1.5 cm to about 10 cm, preferably about 2. 5 cm to about 7 cm.
【0019】 第2ルーメン18の遠位端において、デフレクション・ライン19の遠位端は
カテーテル・シャフト11に固定されている。図1に示す実施形態では、環状ク
ランプ25がデフレクション・ライン19をシャフト11に固定している。デフ
レクション・ライン19をステンレス・スチール・ワイヤから形成する場合、該
デフレクション・ワイヤ19は約0.006インチ(約0.015cm)〜約0
.015インチ(約0.04cm)、好ましくは約0.008インチ(約0.0
2cm)〜約0.012インチ(約0.03cm)の直径を有するとともに、デ
フレクション・ライン19の遠位末端に位置する更に小さな直径の部分に向かっ
て先細りになっている。先細りになっている遠位セクション20の長さは約6〜
約15cm、好ましくは約8cm〜12cmである。本発明の他の特徴とともに
、先細りになっているライン19は十分なカラム強度を提供し、このカラム強度
は、ガイド・カテーテルを2つの方向にそれぞれ屈曲させることを可能にする。At the distal end of the second lumen 18, the distal end of the deflection line 19 is fixed to the catheter shaft 11. In the embodiment shown in FIG. 1, an annular clamp 25 secures the deflection line 19 to the shaft 11. When the deflection line 19 is formed from stainless steel wire, the deflection wire 19 can be from about 0.006 inches (about 0.015 cm) to about 0 inches.
. 015 inches (about 0.04 cm), preferably about 0.008 inches (about 0.04 cm).
2 cm) to about 0.012 inches (about 0.03 cm) and tapers to a smaller diameter section located at the distal end of the deflection line 19. The length of the tapered distal section 20 is about 6 to
It is about 15 cm, preferably about 8 cm to 12 cm. Along with other features of the invention, the tapered line 19 provides sufficient column strength, which allows the guide catheter to bend in two directions, respectively.
【0020】 ガイド・カテーテル10は約5フレンチ(約0.17mm)〜約15フレンチ
(約0.5mm)、好ましくは約6フレンチ(約0.2mm)〜約12フレンチ
(約0.4mm)の外径を有する。第1ルーメンの直径は送り届けるデバイスに
よって決まり、一般的には、送り届けるデバイスの外径よりも約0.010イン
チ(約0.025cm)大きい。第1ルーメンの直径は約0.035インチ(約
0.09cm)〜約0.105インチ(約0.26cm)、好ましくは約0.0
45インチ(約0.11cm)〜約0.105インチ(約0.26cm)であり
、EPカテーテルと併用する場合は、一般的に、約0.05インチ(約0.13
cm)〜約0.08インチ(約0.20cm)である。The guide catheter 10 may be about 5 French (about 0.17 mm) to about 15 French (about 0.5 mm), preferably about 6 French (about 0.2 mm) to about 12 French (about 0.4 mm). Has an outer diameter. The diameter of the first lumen depends on the device to be delivered and is generally about 0.010 inches larger than the outer diameter of the device to be delivered. The diameter of the first lumen is between about 0.035 inches (about 0.09 cm) and about 0.105 inches (about 0.26 cm), preferably about 0.035 inches (about 0.26 cm).
45 inches (about 0.11 cm) to about 0.105 inches (about 0.26 cm), and typically about 0.05 inches (about 0.13 cm) when used with EP catheters.
cm) to about 0.08 inch (about 0.20 cm).
【0021】 図2〜図4に最も明確に示されているように、カテーテル・シャフト11はコ
ア28を取り囲む外側ジャケット27からなる2層構造を有する。外側ジャケッ
ト27は熱可塑性ポリウレタン(略して、PU)又はPU混合物などの熱可塑性
材料であることが好ましく、コア28は熱可塑性PU又はPU混合物であること
が好ましい。シャフト11の外径は一定であるのに対し、第2ルーメンの遠位端
から遠位の位置において、コア28の外径は更に小さい直径に減少している。外
側ジャケット27は、第1ルーメン16及び第2ルーメン18を有するシャフト
11のセクションにおける約0.004インチ(約0.01cm)〜約0.00
9インチ(約0.023cm)、好ましくは約0.005インチ(約0.013
cm)〜約0.007インチ(約0.018cm)の壁厚と、第2ルーメン18
の遠位端から遠位に位置するシャフトのセクションにおける約0.006インチ
(約0.015cm)〜約0.025インチ(約0.064cm)の不均一な壁
厚とを有する。コア28はシャフト・ルーメンを形成している。更に、コア28
は第1ルーメン16及び第2ルーメン18を有するシャフト11のセクションに
おける約0.060インチ(約0.15cm)〜約0.062インチ(約0.1
6cm)の第1の直径と、第2ルーメン18の遠位端から遠位に位置するシャフ
トのセクションにおける約0.014インチ(約0.036cm)〜約0.01
6インチ(約0.04cm)の第2の直径とを有する。As best shown in FIGS. 2-4, the catheter shaft 11 has a two-layer construction consisting of an outer jacket 27 surrounding a core 28. Outer jacket 27 is preferably a thermoplastic material such as thermoplastic polyurethane (PU for short) or a PU mixture, and core 28 is preferably a thermoplastic PU or PU mixture. While the outer diameter of the shaft 11 is constant, at a position distal from the distal end of the second lumen, the outer diameter of the core 28 decreases to a smaller diameter. Outer jacket 27 may be between about 0.004 inches (about 0.01 cm) and about 0.004 inches in the section of shaft 11 having first lumen 16 and second lumen 18.
9 inches (about 0.023 cm), preferably about 0.005 inches (about 0.013 cm)
cm) to about 0.007 inch (about 0.018 cm) and a second lumen 18
A non-uniform wall thickness of about 0.006 inches to about 0.025 inches in a section of the shaft distal from the distal end of the shaft. Core 28 forms the shaft lumen. Further, the core 28
Is about 0.060 inches (about 0.15 cm) to about 0.062 inches (about 0.16 cm) in the section of shaft 11 having first lumen 16 and second lumen 18.
6 cm) and from about 0.014 inches (about 0.036 cm) to about 0.01 in a section of the shaft distal from the distal end of the second lumen 18.
A second diameter of 6 inches (about 0.04 cm).
【0022】 図5は互いに相反する2つの方向への遠位シャフト・セクション14の屈曲を
示す。図5に示す実施形態では、複数の電極34を有するEPデバイス32は、
第1ルーメン16内に配置されている。遠位シャフト・セクション14を屈曲さ
せることによって、第1ルーメン16内の診断デバイス又は治療デバイスを患者
の体内で正確に位置決めできる。FIG. 5 shows the bending of the distal shaft section 14 in two opposite directions. In the embodiment shown in FIG. 5, the EP device 32 having a plurality of electrodes 34 is:
It is arranged in the first lumen 16. By bending the distal shaft section 14, the diagnostic or treatment device within the first lumen 16 can be accurately positioned within the patient.
【0023】 図1に示すように、遠位シャフト・セクション20を屈曲させるのに、デフレ
クション・ライン19を長手方向に移動させる機構を有するハンドル30を、シ
ャフト11の近位端12上に設け得る。図6に示す現時点における好ましい実施
形態に基づくハンドル30は、結合部材33及び内側部材35の周囲に摺動可能
に配置された摺動部材31と、結合部材33及び内側部材35の周囲に配置され
た1つ以上のO−リング36とを一般的に有する。内側部材35は、該内側部材
35の近位端に位置するポートから遠位端に位置するポートまで延在するルーメ
ン37を内部に有する。図7は図6の7−7線におけるハンドルの横断面図であ る。結合部材33はカテーテル・シャフトの近位端12をハンドル30に解放可
能に固定する。摺動部材31は様々な適切な手段によってデフレクション・ライ
ン19の近位部分に固定されており、上記の適切な手段は、ネジと、フックと、
図6に示すクランピング・プレートなどのクランプ・コネクタとを含む。摺動部
材31は、一般的に、デフレクション・ライン固定手段を露出させるために、分
割が可能な結合された2つの部品を有する。摺動部材31と、該摺動部材31に
固定されたデフレクション・ラインとを長手方向に移動させたとき、摺動部材を
近位方向及び遠位方向のうちのいずれの方向に移動させたかに基づいて、遠位シ
ャフト・セクション14は互いに相反する2つの方向のうちの一方に屈曲する。
摺動部材31及び内側部材35の間と、摺動部材31及び結合部材33の間とに
それぞれ設けられたO−リング36は、摺動部材31の移動を止める摩擦ストッ
パを提供する。これによって、摺動部材31は、オペレータが引くか又は押した
ときに円滑に移動させることが可能であるとともに、別個に作動させるロックを
必要とせずに、任意の屈曲位置に固定した状態に維持できる。図6に示す実施形
態では、結合部材33は遠位端に向かって先細りになっており、任意で設けるこ
とが可能な歪み解放部材38に摩擦係合する複数のリッジが結合部材33の遠位
端に設けられている。内側部材35の周囲に配置された外側部材39は、快適な
グリップをオペレータに提供する。半径方向に拡がったフィンガ・グリップが摺
動部材31上に設けられている。摺動部材31上におけるオペレータのグリップ
を改善するために、外面に設けられた複数の溝を、フィンガ・グリップは有し得
る。本発明のガイド・カテーテルは、他の適切なハンドル構造との併用が可能で
ある。例えば、ハンドルはノブを有することが可能である。この場合、デフレク
ション・ライン19を長手方向に沿ってカテーテル10の遠位端に向かって遠位
方向に移動させるために、ノブを時計方向に回動し、デフレクション・ライン1
9をカテーテル10の遠位端から離間する近位方向に移動させるために、ノブを
反時計方向に回動する。As shown in FIG. 1, a handle 30 having a mechanism for moving the deflection line 19 longitudinally to bend the distal shaft section 20 is provided on the proximal end 12 of the shaft 11. obtain. The handle 30 according to the presently preferred embodiment shown in FIG. 6 comprises a sliding member 31 slidably arranged around the coupling member 33 and the inner member 35 and a sliding member 31 arranged around the coupling member 33 and the inner member 35. And one or more O-rings 36. Inner member 35 has a lumen 37 therein that extends from a port located at the proximal end of inner member 35 to a port located at the distal end. FIG. 7 is a cross-sectional view of the handle taken along line 7-7 in FIG. Coupling member 33 releasably secures proximal end 12 of the catheter shaft to handle 30. The sliding member 31 is secured to the proximal portion of the deflection line 19 by various suitable means, such as screws, hooks,
And a clamp connector such as the clamping plate shown in FIG. The sliding member 31 generally has two parts that can be split and joined to expose the deflection line fixing means. When the sliding member 31 and the deflection line fixed to the sliding member 31 are moved in the longitudinal direction, the sliding member is moved in any of the proximal direction and the distal direction. The distal shaft section 14 bends in one of two opposing directions.
O-rings 36 provided between the sliding member 31 and the inner member 35 and between the sliding member 31 and the coupling member 33 respectively provide a friction stopper for stopping the movement of the sliding member 31. This allows the sliding member 31 to move smoothly when the operator pulls or pushes, and maintains a fixed position at any bending position without the need for a separately activated lock. it can. In the embodiment shown in FIG. 6, the coupling member 33 tapers toward the distal end, and a plurality of ridges frictionally engaging an optional strain relief member 38 are provided on the distal end of the coupling member 33. It is provided at the end. An outer member 39 disposed around the inner member 35 provides a comfortable grip to the operator. A radially extending finger grip is provided on the sliding member 31. To improve the grip of the operator on the sliding member 31, the finger grip can have a plurality of grooves provided on the outer surface. The guide catheter of the present invention can be used with other suitable handle structures. For example, the handle can have a knob. In this case, the knob is rotated clockwise to move the deflection line 19 distally along the longitudinal direction toward the distal end of the catheter 10 and the deflection line 1
To move 9 in a proximal direction away from the distal end of catheter 10, the knob is turned counterclockwise.
【0024】 本発明のガイド・カテーテルが提供する移動及び制御の範囲は、所望の心臓組
織への更に優れたアクセスを提供する。図8は、心臓40と、該心臓40の解剖
学的構造とを示している。この解剖学的構造には、左心房41及び左心室42と
、三尖弁45によって互いに分離された右心房43及び右心室44とが含まれる
。下大静脈46及び上大静脈47は、脱酸素化された血液を身体組織から右心房
へ供給し、脱酸素化された血液は、そこから三尖弁45を通って圧送され、最終
的には再酸素化のために肺へ送られる。図8では、ガイド・カテーテル10と、
該ガイド・カテーテル10内に収容されたEPカテーテル32とは、下大静脈4
6と、三尖弁45の上の右心房43との中に配置された状態で示されている。こ
のガイド・カテーテル10の位置は、EPカテーテル32の遠位端に設けられた
複数の電極34を右心房43の心臓組織に作用接触させることを可能にする。図
9は卵円窩を通って左心室内に経中隔挿入されたガイド・カテーテル10の遠位
端と、該ガイド・カテーテル10内に収容されたEPカテーテル32とを示す。The range of movement and control provided by the guide catheter of the present invention provides better access to desired heart tissue. FIG. 8 shows the heart 40 and the anatomy of the heart 40. The anatomy includes a left atrium 41 and a left ventricle 42 and a right atrium 43 and a right ventricle 44 separated from each other by a tricuspid valve 45. The inferior vena cava 46 and the superior vena cava 47 supply deoxygenated blood from body tissue to the right atrium, from which deoxygenated blood is pumped through the tricuspid valve 45 and ultimately Is sent to the lungs for reoxygenation. In FIG. 8, the guide catheter 10 and
The EP catheter 32 accommodated in the guide catheter 10 corresponds to the inferior vena cava 4
6 and in the right atrium 43 above the tricuspid valve 45. This location of the guide catheter 10 allows the electrodes 34 provided at the distal end of the EP catheter 32 to be in operative contact with the heart tissue of the right atrium 43. FIG. 9 shows the distal end of a guide catheter 10 inserted transseptally through the fossa ovalis into the left ventricle, and an EP catheter 32 housed within the guide catheter 10.
【0025】 図10に示すように、ガイド・カテーテルは、大動脈弁及び僧帽弁を通って左
心房及び左心室内へ逆行挿入させることも可能である。図10は左心房内に配置
されたEPカテーテルのうちの作用する遠位端を示している。カテーテルの遠位
セクションは図10の紙面から手前に突き出た状態で示されている。As shown in FIG. 10, the guide catheter can also be inserted retrograde through the aortic and mitral valves into the left atrium and left ventricle. FIG. 10 shows the operative distal end of an EP catheter placed in the left atrium. The distal section of the catheter is shown protruding forward from the page of FIG.
【0026】 屈曲可能な遠位シャフト・セクション14を形成するために使用する材料は、
カテーテル・シャフト11の残りの部分に使用する材料よりも更に高い柔軟性、
即ち、更に高い可撓性を有する。1つの実施形態では、図5に示す非外傷性のソ
フト遠位端チップ29はシャフトの遠位端13に設けられており、ルーメン50
及び遠位端ポートは第1ルーメン16に連通されている。The materials used to form the bendable distal shaft section 14 include:
More flexibility than the material used for the rest of the catheter shaft 11,
That is, it has higher flexibility. In one embodiment, the atraumatic soft distal tip 29 shown in FIG. 5 is provided at the distal end 13 of the shaft and includes a lumen 50.
The distal end port is in communication with the first lumen 16.
【0027】 以上、本発明を特定の好ましい実施形態に関連して詳述したが、本発明の範囲
から逸脱することなく、本発明の変更及び改良が可能である。While the invention has been described in detail with reference to certain preferred embodiments, modifications and improvements of the invention can be made without departing from the scope of the invention.
【図1】 本発明の特徴を具体化したガイド・カテーテルの部分縦断面図で
ある。FIG. 1 is a partial longitudinal sectional view of a guide catheter embodying features of the present invention.
【図2】 図1の2−2線におけるカテーテルの断面図である。FIG. 2 is a cross-sectional view of the catheter taken along line 2-2 of FIG.
【図3】 図1の3−3線におけるカテーテルの断面図である。FIG. 3 is a sectional view of the catheter taken along line 3-3 in FIG. 1;
【図4】 図1の4−4線におけるカテーテルの断面図である。FIG. 4 is a sectional view of the catheter taken along line 4-4 in FIG. 1;
【図5】 本発明のカテーテルの縦断面図であり、遠位シャフト・セクショ
ンの屈曲と、該遠位シャフト・セクション内に位置するEPデバイスとを示す。FIG. 5 is a longitudinal cross-sectional view of a catheter of the present invention showing the bending of the distal shaft section and the EP device located within the distal shaft section.
【図6】 本発明のカテーテルと併用するハンドルの部分縦断面図である。FIG. 6 is a partial longitudinal sectional view of a handle used together with the catheter of the present invention.
【図7】 図6の7−7線におけるハンドルの横断面図である。FIG. 7 is a cross-sectional view of the handle taken along the line 7-7 in FIG. 6;
【図8】 心臓の右心房内に位置決めされた本発明のガイド・カテーテルと
、該ガイド・カテーテル内に位置するEPデバイスとを示す図である。FIG. 8 shows a guide catheter of the present invention positioned in the right atrium of the heart and an EP device located within the guide catheter.
【図9】 経中隔挿入によって心臓の左心房内に配置した本発明のガイド・
カテーテルと、該ガイド・カテーテル内に位置するEPデバイスとを示す図であ
る。FIG. 9 shows a guide of the invention positioned in the left atrium of the heart by transseptal insertion.
FIG. 2 shows a catheter and an EP device located within the guide catheter.
【図10】 逆行挿入によって心臓の左心房内に配置した本発明のガイド・
カテーテルと、該ガイド・カテーテル内に位置するEPデバイスとを示す図であ
る。FIG. 10 shows a guide of the invention placed in the left atrium of the heart by retrograde insertion.
FIG. 2 shows a catheter and an EP device located within the guide catheter.
───────────────────────────────────────────────────── フロントページの続き (81)指定国 EP(AT,BE,CH,CY, DE,DK,ES,FI,FR,GB,GR,IE,I T,LU,MC,NL,PT,SE),OA(BF,BJ ,CF,CG,CI,CM,GA,GN,GW,ML, MR,NE,SN,TD,TG),AP(GH,GM,K E,LS,MW,SD,SZ,UG,ZW),EA(AM ,AZ,BY,KG,KZ,MD,RU,TJ,TM) ,AL,AM,AT,AU,AZ,BA,BB,BG, BR,BY,CA,CH,CN,CU,CZ,DE,D K,EE,ES,FI,GB,GD,GE,GH,GM ,HR,HU,ID,IL,IN,IS,JP,KE, KG,KP,KR,KZ,LC,LK,LR,LS,L T,LU,LV,MD,MG,MK,MN,MW,MX ,NO,NZ,PL,PT,RO,RU,SD,SE, SG,SI,SK,SL,TJ,TM,TR,TT,U A,UG,UZ,VN,YU,ZW (72)発明者 ローレント・シャラー アメリカ合衆国94025カリフォルニア州ロ ス・アルトス、ベンベニュー595番──────────────────────────────────────────────────続 き Continuation of front page (81) Designated country EP (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE ), OA (BF, BJ, CF, CG, CI, CM, GA, GN, GW, ML, MR, NE, SN, TD, TG), AP (GH, GM, KE, LS, MW, SD, SZ, UG, ZW), EA (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM), AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, CA, CH, CN, CU, CZ, DE, DK, EE, ES, FI, GB, GD, GE, GH, GM, HR, HU, ID, IL, IN, IS, JP, KE , KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MD, MG, MK, MN, MW, MX, NO, NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, SL, TJ, TM, TR, TT, UA, UG, UZ, VN, YU, ZW (72) Inventor Laurent Schaller ven.
Claims (16)
と、屈曲可能な遠位セクションと、長手方向軸線とを有する長尺状カテーテル・
シャフトと、 b)上記シャフトの長手方向軸線に対して偏心した第1ルーメンと、 c)上記第1ルーメンに対して軸線方向に整列し、かつ、上記長手方向軸線に
対して偏心した第2ルーメンと、 d)近位端及び遠位端を有し、上記第2ルーメン内に配置され、かつ、自身の
上記遠位端が上記シャフト内に固定されている長尺状デフレクション部材と、 e)上記第1ルーメンに連通した上記シャフトの遠位端上のポートと を有することを特徴とするガイド・カテーテル。1. An elongated catheter having a proximal end, a distal end, a relatively rigid proximal section, a bendable distal section, and a longitudinal axis.
A shaft; b) a first lumen eccentric with respect to the longitudinal axis of the shaft; c) a second lumen axially aligned with the first lumen and eccentric with respect to the longitudinal axis. D) an elongate deflection member having a proximal end and a distal end, disposed within the second lumen, and having its distal end secured within the shaft; A) a port on the distal end of the shaft in communication with the first lumen.
記カテーテル・シャフトの上記遠位端から近位方向に離間した位置まで、上記屈
曲可能な遠位セクションの少なくとも一部分内を通って延在していることを特徴
とする、請求項1記載のカテーテル。2. The second lumen extends from a proximal end of the shaft and at least a portion of the bendable distal section to a position proximally spaced from the distal end of the catheter shaft. The catheter of claim 1, wherein the catheter extends through.
あることを特徴とする、請求項2記載のカテーテル。3. The catheter of claim 2, wherein the bendable distal section is about 5 to about 15 cm in length.
うちの約4〜約12cmにわたって延在していることを特徴とする、請求項3記
載のカテーテル。4. The catheter of claim 3, wherein the second lumen extends for about 4 to about 12 cm of the length of the bendable distal section.
ンの長さのうちの約4〜約12cmにわたって延在していることを特徴とする、
請求項3記載のカテーテル。5. The deflection line extends for about 4 to about 12 cm of the length of the bendable distal section.
The catheter according to claim 3.
の遠位端内のポートまで延在していることを特徴とする、請求項1記載のカテー
テル。6. The catheter of claim 1, wherein the first lumen extends from a proximal end of the shaft to a port in a distal end of the shaft.
する、請求項1記載のカテーテル。7. The catheter according to claim 1, further comprising a reinforcement embedded in the shaft.
求項7記載のカテーテル。8. The catheter according to claim 7, wherein the reinforcement is a wire braid.
可能な遠位セクションの少なくとも一部分内まで延在していることを特徴とする
、請求項8記載のカテーテル。9. The catheter of claim 8, wherein the wire blade extends from a proximal end of the shaft into at least a portion of the bendable distal section.
位方向に離間した位置まで延在していることを特徴とする、請求項9記載のカテ
ーテル。10. The catheter of claim 9, wherein the wire braid extends proximally from a distal end of the second lumen.
長さの約1〜約2.5cmにわたって延在していることを特徴とする、請求項1
0記載のカテーテル。11. The wire blade of claim 1, wherein the wire blade extends for about 1 to about 2.5 cm of the length of the bendable distal section.
0. The catheter according to 0.
さくなる先細りの遠位セクションを有することを特徴とする、請求項1記載のカ
テーテル。12. The catheter of claim 1, wherein the elongated deflection line has a tapered distal section that decreases in diameter in the radial direction.
クションの長さは約6〜約15cmであることを特徴とする、請求項11記載の
カテーテル。13. The catheter of claim 11, wherein the length of the tapered distal section of the deflection line is about 6 to about 15 cm.
有することを特徴とする、請求項1記載のカテーテル。14. The catheter of claim 1, wherein the first lumen has a diameter between about 0.09 and about 0.26 cm.
ることを特徴とする、請求項1記載のカテーテル。15. The catheter of claim 1, wherein the outer diameter of the catheter is between about 0.20 and about 0.37 cm.
端チップを有し、上記非外傷性のソフト遠位端チップは、上記第1ルーメンに連
通されたルーメンを内部に有し、かつ、上記遠位端に位置するポートを有するこ
とを特徴とする、請求項1記載のカテーテル。16. A non-traumatic soft distal tip provided at a distal end of the shaft, wherein the non-traumatic soft distal tip includes a lumen communicated with the first lumen. The catheter of claim 1, having a port therein and located at the distal end.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/001,249 | 1997-12-30 | ||
US09/001,249 US6251092B1 (en) | 1997-12-30 | 1997-12-30 | Deflectable guiding catheter |
PCT/US1998/027829 WO1999033509A1 (en) | 1997-12-30 | 1998-12-30 | Deflectable guiding catheter |
Publications (1)
Publication Number | Publication Date |
---|---|
JP2001526944A true JP2001526944A (en) | 2001-12-25 |
Family
ID=21695100
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2000526255A Pending JP2001526944A (en) | 1997-12-30 | 1998-12-30 | Flexible guide catheter |
Country Status (6)
Country | Link |
---|---|
US (1) | US6251092B1 (en) |
EP (1) | EP1049508A1 (en) |
JP (1) | JP2001526944A (en) |
AU (1) | AU2022399A (en) |
CA (1) | CA2316839A1 (en) |
WO (1) | WO1999033509A1 (en) |
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Also Published As
Publication number | Publication date |
---|---|
EP1049508A1 (en) | 2000-11-08 |
AU2022399A (en) | 1999-07-19 |
CA2316839A1 (en) | 1999-07-08 |
US6251092B1 (en) | 2001-06-26 |
WO1999033509A1 (en) | 1999-07-08 |
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